Practice more To study maths you have you have only the way to practise. There is no escaping this reality, to do well in a Maths exam you need to have solved a LOT of mathematical problems... Read more

MULTIPLICATION OF A NUMBER BY 12 This method is just similar to 11 Add ‘0’ to both the ends of the given number Starting from right hand side, take two digits each time Multiply the left sid... Read more

FINDING CUBE OF NUMBERS NUMBERS BETWEEN 10-20 Students should remember cubes of 10 numbers. 13   = 1 23 = 8 33 = 27 43 = 64 53 = 125 63 = 216 73 = 343 83 = 512 93 = 729 103 = 1000 We take an... Read more

ANY  TWO  DIGIT  NUMBER With this method we can find cube of any two digit number. We have to write the numbers in four places Write cube of first digit of the given number in the first plac... Read more

ADDING A SERIES OF NUMBERS HAVING A COMMON RATIO Rule: Multiply the ratio by itself as many times as there are numbers in the series. Subtract from the product and multiply by the first numb... Read more

SQUARING ANY NUMBER ENDING IN 1 Rule: First, square the number to the left of the units digit. Then double the number to the left of the units digit. Affix the units digit of this result to... Read more